Hood or injector for car-ventilators.



No. 756,057. I PATBNTED MAR. 29', 1904.

. H. B. ROWLAND. 4

H001) 0R INJECTOR FOR GAR VENTILATORS.

APPLICATION FILED MAB IQ, 1903. I

no MODEL.

3 mve/nkoz UNITED STATES Patented March 29, 1904;

PATENT, OFFICE.

HORACE B. ROWLAND, OF PHILADELPHIA, PENNSYLVANIA.

HOOD OR INJECTOR FOR CAR-VENTILAI'ORS.

SPECIFICATION forming part of Letters Patent No. 756,057, dated March29, 1904.

Application filed March 19, 1903.

To all whom, it may concern.-

Be it known that I, HORACE B. ROWLAND, a

citizen of the United States, residing in the city and county ofPhiladelphia, State of Pennsylvania, have invented a new and usefulImprovement in Hoods or Injectors for Car Ventilation, of which thefollowing is a specification.

My invention consists of an improvement in hoods for the purpose ofcollecting air and directing the same to a suitable point or place andwhich is provided with means for properly controlling the passage of theair through said hoods.

It further consists in means for preventing the moisture and particlesof dirt from passing through said hoods.

It further consists of novel details of construction, all as will behereinafter set forth.

Figure 1 represents avertical sectional view of a hood embodyingmyinvention. Fig. 2 represents an end elevation thereof.

Similar letters of reference indicate corresponding parts in thefigures.

Referring to the drawings, A designates a hood having an upper wall Band the side walls C and D, the lower portions E and F, respectively, ofwhich are below the edges of the upper wall B, while the upper edges Grand H of said side walls are situated at a point above the edges of theupper wall It will be seen that the said side walls C and D formbaffle-plates and serve, with said upper wall B, to form the passages Jand K, having the openings L and M, each of which is provided with ascreen or mesh N.

P designates a passage communicating with the passages J and'K andformed by the wall Q, the lower portion of which is flared and forms ashoulder B, said wall Q terminating in a pipe S. which when in positioncommunicates with a suitable pipe T, which leads to a suitable point orplate. U designates a socket which can be secured in any suitable mannerto a suitable support and upon the upper edge of which the shoulder R isadapted to rest. The said hood A may be secured to said socket U by aset-screw V, and the pipe T is secured to said socket U by a set-screwSerial No. 148,653. (No model.)

W, whereby it will be seen that the parts are held in the properposition.

X designates a valve which is suitably pivoted to the hood A and extendsdownwardly below the upper edge of the wall Q in such a manner that thesaid valve will contact with the said wall Q in either of its extremepositions, as seen in Fig. 1, so that either the passage J or thepassage K will be closed with respect to passage P. V

The operation is as follows: If the air is entering the hood throughtheopening L, it will pass through the screen N, which serves to preventthe passage of dust, &c., and the air strikes the baffle-plate C, sothat any moisture or particles of dirt which may have passed the screenN will be separated from the air and the air will pass upwardly andaround the upper edge G of the baflle-plate, and the valve assuming theposition seen in full lines, Fig.

1, the air will be directed downwardly through the passage P into thepipe T and thence be conducted to a suitable point, it being understoodthat if the air is passing into the hood through opening M the valvewill assume the position seen in dotted line, Fig. 1, and the sameoperation as previously described will take place.

It will be evident that various changes may be made in the art which maycome within the scope of my invention, and I do not, therefore, desireto be limited in every instance to the exact construction as hereinshown and described.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is o 1. A hood comprising an upper wall and aconvex baffle-plate beneath said wall and extending above and below theplane of the lower edge thereof 2. A hood, comprising a passage, anupper wall covering said passage and having its outer edge extendedbelow the mouth thereof and a convex bafiierplate beneath said wall,connectedwith said passage and extending above and below the plane ofthe outer edge of said wall.

3. A hood comprising a substantially vertical passage, an upper wallcovering said pasl forming opposite openings into said passage sage andhaving its outer edges extended beand means for closing either of saidopenings.

ow 1; 1e mout 1 t iereof, convex bafile-p ates beneath said Wall,connected with said pas- HORACE ROWLAND 5 sage and extending above andbelow the plane \Vitnesses:

of the outer edge of said wall, side walls (3011- E. HAYWARD FAIRBANKS,neoting said upper walls and said bafi'le-plates WM. CANERWIEDERSI-IEIM.

